Liberty Mutual Group Inc. 401(k) Plan: Login, Facts & Contact Information

Liberty Mutual Group Inc. 401(k) Plan Facts

Plan name
LIBERTY MUTUAL 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
LIBERTY MUTUAL GROUP INC.
Participants
53,084 (31,562 active employees)
Former employees with a balance
16,564
Plan assets
$11,352,606,499 at Dec 31, 2024
Average account balance
$233,027 across 48,718 accounts
Employer contributions
$134,727,421 in plan year 2024 (24% of all contributions)
Recordkeeper
Fid Inv Inst Ops Co
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1975
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Oct 8, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $562.1 million went into the plan in contributions, $134.7 million of it from the employer (24%).
  • $947.2 million was paid out to participants.
  • Investment and other income added $1.33 billion.
  • Administrative expenses were $12.5 million, about $256 per account.

How the Liberty Mutual Group Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
201951,589$8.88 billion$123.4 million$657.5 million
202051,723$9.91 billion$122.9 million$673.9 million
202150,048$10.1 billion$124.4 million$1.48 billion
202251,041$8.80 billion$128.4 million$774.4 million
202355,320$10.6 billion$140.1 million$727.8 million
202453,084$11.4 billion$134.7 million$947.2 million

Liberty Mutual Group Inc. 401(k) Contact Information

Phone
617-357-9500
Mailing address
175 BERKELEY STREET, BOSTON MA 02116
Plan sponsor
LIBERTY MUTUAL GROUP INC.
Plan administrator
LIBERTY MUTUAL RETIREMENT COMMITTEE
Employer identification number (EIN)
04-3583679
Plan number
002

Questions about the Liberty Mutual Group Inc. 401(k)

Does Liberty Mutual Group Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $134.7 million, 24% of all contributions.

Does the Liberty Mutual Group Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Liberty Mutual Group Inc 401(k) plan?

53,084 participants at the start of plan year 2024, 31,562 of them active employees, and 16,564 former employees who still had money in the plan.

What is the average 401(k) balance at Liberty Mutual Group Inc?

About $233,027 per account: $11.4 billion in plan assets across 48,718 accounts with a balance at the end of plan year 2024.

Who manages the Liberty Mutual Group Inc 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FID INV INST OPS CO) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Liberty Mutual Group Inc. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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